arr = [1, 2, 3, 4, 5]
print( len(arr))
print(sum(arr))
del arr[2]
print(max(arr))
print(min(arr))
print(arr)
arr2 = ["a", "b", "c", 1,2,3]
print("a"in arr2)
print(5 in arr2)
print(arr + arr2)
print(arr * 3)
string1 = ["a","b","c"]
string2 = ["a","b","d"]
print(string1 < string2)

